Short answer: National Stoving Primer is an alkyd-melamine formaldehyde industrial primer that cures in an oven, for metal equipment, domestic appliances and vehicle repaint, under National Stoving Enamel. Spray one 35-micron coat, allow 10 to 15 minutes flash-off, then stove at 120°C for 30 minutes or 150°C for 20 minutes. It covers about 15 m² per litre, thins 5 to 10% with National Stoving Thinner and has a 6-month shelf life.
What stoving means
Air-drying alkyds cure at room temperature over hours. Stoving products are cured by heat in an oven, so a production line can prime, stove, top-coat and stove again in a short cycle. National’s stoving system is two products: this primer and Stoving Enamel. It suits factories and workshops with an oven, not site work.
Key facts
| Type | Alkyd-melamine formaldehyde stoving primer, single pack |
| Uses | Metal equipment, domestic appliances, vehicle repaint |
| Finish and colours | Matt; white, off-white |
| Volume solids | 54 ± 2% |
| Specific gravity | 1.40 ± 0.05 |
| Spreading rate | 15 m² per litre (theoretical) |
| Film | 35 microns dry (65 wet) |
| Flash-off | 10 to 15 minutes |
| Stoving schedule | 120°C for 30 minutes, or 150°C for 20 minutes |
| Application | Conventional air spray, 50 psi atomizing pressure (airless not applicable) |
| Thinning | 5 to 10% with National Stoving Thinner |
| Flash point | 32°C |
| Shelf life | 6 months at 30°C, sealed |
Step by step
- Degrease the parts with a solvent wash wiped dry, or detergent rinsed with fresh water, as National’s surface preparation guide sets out for steel.
- Remove rust and scale (blast to Sa 2.5 or clean to St 2), and make sure parts are dry and dust-free.
- Thin 5 to 10% with Stoving Thinner and spray one coat at 35 microns dry (about 65 wet), at 50 psi.
- Flash off for 10 to 15 minutes so solvent can escape before heating.
- Stove at 120°C for 30 minutes or 150°C for 20 minutes.
- Top-coat with Stoving Enamel at 30 microns and stove again.
What the numbers mean
Coverage = 540 ÷ 35 ≈ 15.4 m² per litre, in line with the sheet’s 15. Wet film = 35 ÷ 0.54 ≈ 65 microns, exactly the sheet’s recommendation. The full system (primer plus enamel) is about 65 microns dry.
How much to buy
| Part area | Stoving Primer | Stoving Enamel |
|---|---|---|
| 50 m² | about 3.3 L | about 2.9 L |
| 100 m² | about 6.7 L | about 5.9 L |
| 500 m² | about 33 L | about 29 L |
Mistakes to avoid
- Skipping flash-off. The sheet gives 10 to 15 minutes before stoving.
- Using G.P. Thinner. The sheet specifies National Stoving Thinner. See which National thinner to use.
- Over-ordering. Shelf life is 6 months, much shorter than National’s 18-month air-dry alkyds.
Frequently asked questions
Is there a primer that can either air dry or stove?
National also makes a Red Oxide Air Drying / Stoving Primer (PDF) for production lines that need both options, topcoated with Gloss II for air drying or Stoving Enamel for stoving. Ask us if you need it.
Can I air dry Stoving Primer?
Its data sheet gives a stoving schedule only, so no. For air-dried work, use Red Oxide Primer with Gloss II.
Buy in Sharjah and Dubai
Al Tashteb Al Saree is an authorised National Paints retailer in Bu-Tina, Sharjah. Message us on WhatsApp for Stoving Primer, Stoving Enamel and Stoving Thinner.
Sources
- National Stoving Primer data sheet (PDF)
- National Stoving Enamel data sheet (PDF)
- National Red Oxide Air Drying / Stoving Primer data sheet (PDF)
- National Paints surface preparation guide, Sec. A-2 (PDF)
All via AEC Online, retrieved 4 November 2026. Quantities are our own calculations. The main image is illustrative.
